On the stability of solutions to random optimization problems under small perturbations

Placeholder Show Content

Abstract/Contents

Abstract
Consider the Euclidean traveling salesman problem with n random points on the plane. Suppose that one of the points is shifted to a new random location. This gives us a new optimal path. Consider such shifts for each of the n points. Do we get n very different optimal paths? In this work, we show that this is not the case --- in fact, the number of truly different paths is bounded as n becomes large. The proof is based on a general argument which allows us to prove similar stability results in a number of other settings, such as branching random walk, the Sherrington--Kirkpatrick model of mean-field spin glasses, the Edwards--Anderson model of short-range spin glasses, and the Wigner ensemble of random matrices.

Description

Type of resource text
Form electronic resource; remote; computer; online resource
Extent 1 online resource.
Place California
Place [Stanford, California]
Publisher [Stanford University]
Copyright date 2023; ©2023
Publication date 2023; 2023
Issuance monographic
Language English

Creators/Contributors

Author Ray, Souvik
Degree supervisor Chatterjee, Sourav
Thesis advisor Chatterjee, Sourav
Thesis advisor Dembo, Amir
Thesis advisor Diaconis, Persi
Degree committee member Dembo, Amir
Degree committee member Diaconis, Persi
Associated with Stanford University, School of Humanities and Sciences
Associated with Stanford University, Department of Statistics

Subjects

Genre Theses
Genre Text

Bibliographic information

Statement of responsibility Souvik Ray.
Note Submitted to the Department of Statistics.
Thesis Thesis Ph.D. Stanford University 2023.
Location https://purl.stanford.edu/nc904bn0891

Access conditions

Copyright
© 2023 by Souvik Ray
License
This work is licensed under a Creative Commons Attribution 3.0 Unported license (CC BY).

Also listed in

Loading usage metrics...